Colt 1860 (Richards Transitional Conversion)

At one point, John Reid (Armie Hammer) draws what appears to be a Richards Transitional cartridge conversion of a Colt 1860 revolver and holds it on Tonto (Johnny Depp). The lack of a rear sight on the breech ring combined with the Colt 1860 barrel means this is likely a Richards Transitional model (also called the Richards Type II), although it could be an early model Richards-Mason conversion (when they still used the barrels from Colt 1860 percussion revolvers).

Colt 1860 Army with Richards conversion.

John draws the Colt 1860 conversion. Clearly visible are the ejector shroud and lack of a breech ring rear sight.

"Why are you talking to that horse?" John asks, holding the Colt 1860 Richards Transtional Conversion on Tonto.